Yeah... It kinda sucked.
When they were younger (last spring) I kept the electric fence turned off. The pack of puppies would dig out, and head to the swamp about 200 yards behind the house.
One day I was digging out for the concrete pads, and 4 out of them came hauling ass back under the fence. They were all covered in duck weed so I knew where they were. None of them has left the yard since.